作者carage

AT這篇文章說的...
http://www.anandtech.com/show/5285/...issue-explained
The GPS Issue

ASUS recently released an update that addresses GPS lock performance, however it only ensures that ephemeris (used to calculate satellite position) and almanac (details for all GPS satellites) data are downloaded over WiFi to speed up the process of determining your current position. Without network assistance, this data would have to be received from the satellites themselves at an extremely low transfer rate (50 bits per second in ideal conditions). This update does not fundamentally address the issue of GPS reception, nor is it possible to address that in software - it's a limitation of the Prime's design.

GPS signals are transmitted as high frequency radio waves (~1.5GHz for most client GPSes) from a number of orbital satellites high above the earth's surface (~20K km). GPS satellites broadcast accurate time and orbital positioning information for themselves and other satellites in the system. GPS receivers on the ground can then calculate the receiver's location using this data from a minimum of four visible satellites. More accurate location calculation is possible with more satellites but four is generally the minimum.

The data needed from the satellites isn't very large, but it's transmitted very slowly and via RF over a great distance. As we've mentioned in earlier posts, radio waves don't pass through conductors that block their path. Though stylish, aluminum enclosures are very good at blocking radio waves.

作者carage

聽說後面還有一台TF202，面板拉到1920x1080, 可是CPU改回Tegra2??

作者carage

聽說後面還有一台TF202，面板拉到1920x1080, 可是CPU改回Tegra2??

作者ggjtwo

可是金屬會遮蔽這種問題應該是常識啊
怎麼這麼多的研發人員沒思考過這點嗎
還是都在裝死
先上市再說

作者skyang

因為現在是設計部門當老大，就跟台灣推行的創意教學一樣
鼓勵天馬行空去想，卻忘記因該先有基礎訓練。

設計部：我們要比蘋果薄，比蘋果炫
RD：幹！這種違反物理定律的東西怎麼做的出來
施董：設計部門說了算。
RD：挖個坑讓他跳

作者skyang

因為現在是設計部門當老大，就跟台灣推行的創意教學一樣
鼓勵天馬行空去想，卻忘記因該先有基礎訓練。

設計部：我們要比蘋果薄，比蘋果炫
RD：幹！這種違反物理定律的東西怎麼做的出來
施董：設計部門說了算。
RD：挖個坑讓他跳